Download or read book Breeding and Wintering Areas of Canvasbacks Harvested in Various States and Provinces (Classic Reprint) written by Aelred D. Geis and published by Forgotten Books. This book was released on 2017-11-18 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Breeding and Wintering Areas of Canvasbacks Harvested in Various States and Provinces Over 7h, ooo canvasbacks were banded between 1925 and 1972, and have been recovered. Recoveries used in this study were confined to those reported as shot or found dead 1 September-30 January in the United States and Canada, and during 1 September-30 April in Mexico during the 1925-71 hunting seasons. For some areas it was necessary to include all recoveries since the beginning of the banding program because of small sample sizes. Other banding periods were winter (january and February), spring (march and April), and summer (june September). In analyzing the derivation of the harvest in various harvest areas, recoveries during 1960-63 were omitted because the season was closed in the United States during those years. As a preliminary step in the analysis, the distribution of recoveries and recovery rates from specific banding stations was examined to determine if differences existed in the distribution of recoveries from individual banding stations within the same State or Province. With three exceptions, Saskatchewan, New York, and Maryland, there were no differences, and data for an entire State or Province could be combined. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.